09-24-2009
Quote:
Originally Posted by
chakrapani
ok One very important thing; even though the script looks complete it may not be ... you need to make sure that it runs on your system .. Shell scripts have a bad habit of behaving differently on every system ... So I prefer to write the script on system direclty.
My script explanation
First few lines are defn ...
The function called laststatus checks the last status of the VPN. The idea is script runs every 5 mins and will email only change of status not DOWN every five mins when down ; so the function gets a parameter say "UP" or "DOWN" when called and will return 1 or 0 based on what is there in the statusfile.
Example: function is called with DOWN
laststatus "DOWN" then it will grep the status file to see if it is was DOWN when it checked last time if the status was DOWN then it is suppose to tell main prg not to send email because there is no change .
In the main prg we check if VPN status is really down or not and make decisions.
Now since I saw that you had two logs called VPNLOG and MONLOG ... I add them. Only difference is VPNLOG is overwritten every 5 mins when script is called from cron. And MONLOG will be appended with status of this script also.
I guess you need to still fix the script to work on your system ... let forum know if this worked ..
Hi chakrapani,
I executed the script you wrote in cron and named is as partner-vpn.sh. i did not disconnect the vpn..everytime i executed the script using ./partner-vpn or even if he script is executed by cron after every 5 minutes i get an email generated from the script "Partner VPN UP again, whereas the mail should be recieved only when the VPN is up after being down...
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LEARN ABOUT MOJAVE
jrunscript
jrunscript(1) General Commands Manual jrunscript(1)
NAME
jrunscript - command line script shell
SYNOPSIS
jrunscript [ options ] [ arguments... ]
PARAMETERS
options
Options, if used, should follow immediately after the command name.
arguments
Arguments, if used, should follow immediately after options or command name.
DESCRIPTION
jrunscript is a command line script shell. jrunscript supports both an interactive (read-eval-print) mode and a batch (-f option) mode of
script execution. This is a scripting language independent shell. By default, JavaScript is the language used, but the -l option can be
used to specify a different language. Through Java to scripting language communication, jrunscript supports "exploratory programming"
style.
NOTE: This tool is experimental and may not be available in future versions of the JDK.
OPTIONS
-classpath path
Specify where to find the user's .class files that are accessed by the script.
-cp path
This is a synonym for -classpath path
-Dname=value
Set a Java system property.
-Jflag
Pass flag directly to the Java virtual machine on which jrunscript is run.
-l language
Use the specified scripting language. By default, JavaScript is used. Note that to use other scripting languages, you also need to spec-
ify the corresponding script engine's jar file using -cp or -classpath option.
-e script
Evaluate the given script. This option can be used to run "one liner" scripts specified completely on the command line.
-encoding encoding
Specify the character encoding used while reading script files.
-f script-file
Evaluate the given script file (batch mode).
-f -
Read and evaluate a script from standard input (interactive mode).
-help
Output help message and exit.
-?
Output help message and exit.
-q
List all script engines available and exit.
ARGUMENTS
If [arguments...] are present and if no -e or -f option is used, then the first argument is the script file and the rest of the arguments,
if any, are passed as script arguments. If [arguments..] and -e or -f option are used, then all [arguments..] are passed as script argu-
ments. If [arguments..], -e and -f are missing, interactive mode is used. Script arguments are available to a script in an engine variable
named "arguments" of type String array.
EXAMPLES
Executing inline scripts
jrunscript -e "print('hello world')"
jrunscript -e "cat('http://java.sun.com')"
Use specified language and evaluate given script file
jrunscript -l js -f test.js
Interactive mode
jrunscript
js>print('hello world');
hello world
js>34 + 55
89
js> thread(function() { print('hello world'); }
hello world
js>
Run script file with script arguments
jrunscript test.js arg1 arg2 arg3
test.js is script file to execute and arg1, arg2 and arg3 are passed to script as script arguments. Script can access these using "argu-
ments" array.
SEE ALSO
If JavaScript is used, then before evaluating any user defined script, jrunscript initializes certain built-in functions and objects. These
JavaScript built-ins are documented in jsdocs.
06 Aug 2006 jrunscript(1)